A "back to top HTML arrow or button" is a little arrow ,a little image button, usually placed in the left bottom corner of the page. When the back to top image/arrow is clicked the page is scrolling (jumping) to the top. This is very useful for your visitors so they can navigate on your blog easier. To add a back to top html button/arrow just follow the steps bellow:

1. Go to your blogger dashboard
2. Go to Layout
3. Click Edit HTML
4. Find the <body> line
5. Add imediatly after it the following code
<div class='backtotop'><a class='backtotop' href='#' rel='nofollow' style='display:scroll;position:fixed;bottom:5px;right:5px;' title='Back to Top'><img height='20' src='http://i645.photobucket.com/albums/uu178/coolboycsaba/up.gif' alt='back to top html arrow button' style='border:0;' width='20'/></a></div>
6. Customize the code:
  • change the red highlighted numbers to change the distance between the side or bottom of the screen
  • change bottom with top to put the buttom at the top of the page
  • change right with left to put the button at the left side of the screen
  • change the bold text(URL) with the URL of your image (you can use my image if you link to my blog , see the details at the sidebar)
  • change the width and the height of the image
7. Save your template!